Transcript
15LW1402 Extended Low Frequency Transducer KeyFeatures 97,5 dB SPL 1W / 1m average sensitivity 100 mm (4 in) Interleaved Sandwich Voice coil (ISV) 1000 W AES power handling Double Silicon Spider (DSS) for improved excursion control and linearity Improved heat dissipation via unique basket design Very low power compression Weather protected cone and plates for outdoor usage
Description The 15LW1402 extended low frequency woofer represents the latest development in 15" (380 mm) high performance transducers. It will find its ideal application as the low bass or sub-woofer component, either in a reflex, bandpass or horn loaded configuration, in high power loudspeaker systems. 15LW1402 is intended as low bass or sub-woofer component, either in a more compact reflex, bandpass or horn loaded configuration, to provide clean, linear, undistorted low frequency reproduction at very high power levels, as part of a high power full-range system. In its reflex configuration it can be used in extremely compact enclosures (65 - 130ltr), making it ideally suited to touring applications including indoor and outdoor concert reinforcement systems, and also for musical instruments such as the bass guitar, bass/rhythm synthesizers, drum-fill monitors The high excursion capabilities of the surround and suspension system, in conjunction with the Double Silicon Spider (DSS), has enabled 15WL1402 to achieve high levels of linear travel maintaining full control of the moving mass. The carbon fiber reinforced, straightsided ribbed cone assures smooth response and exceptional strength with maximum reliability under high mechanical stress. The 100mm Ø state-of-the-art voice coil employs proprietary Interleaved Sandwich Voice coil (ISV) technology, in which a high strength fiberglas former carries windings on both the outer and inner surfaces. ISV achieves a mass balanced coil, in which the weight of the winding is evenly distributed, thus also providing a uniform motion drive. This, in conjunction with the use of state-of-the-art and unique high temperature resin adhesives, results in an extremely linear motor assembly. Excellent heat dissipation is achieved by the incorporation of air channels between basket and magnetic top plate. Further ventilation is provided via air vents in the back plate to direct air also into the lower part of the voice coil gap. With the increasing use of high power audio systems at outdoor events, the ability to perform properly under inclement weather conditions is another part of the Eighteen Sound philosophy. This is achieved by means of an exclusive cone treatment improving pulp strength and giving water repellent properties to both sides of the cone. In addition, the special treatment of both the top and back plates is far more resistant to the corrosive effects of salts and oxidization than any other standard treatment currently in use.
Models
15LW1402 Extended Low Frequency Transducer General Specifications Nominal Diameter Rated Impedance AES Power Program Power Peak Power Sensitivity Frequency Range Power Compression @-10dB Power Compression @-3dB Max Recomm. Frequency Recomm. Enclosure Volume Max Peak To Peak Excursion Voice Coil Diameter Voice Coil Winding Material
380 mm (15 in) 8 Ohm 1000 W 1400 W 7000 W 97,5 Db 40 ÷ 2000 Hz 0,6 dB 2,2 Db 800 Hz 70 ÷ 140 lt. (2,47 ÷ 4,95 cuft) 39 mm (1,53 in) 100 mm (3,95 in) copper
FREE AIR IMPEDANCE MAGNITUDE CURVE
Thiele Small Parameters Fs Re Sd Qms Qes Qts Vas Mms BL Linear Mathematical Xmax Le (1kHz) Ref. Efficiency 1W@1m (half space)
42 Hz 5,9 Ohm 0,090 sq.mt. (139,5 sq.in.) 8,1 0,29 0,28 126 lt. (4,45 cuft) 130 gr. (0,63 lb) 26,3 Tm ± 7 mm (±0,28 in) 2,66 mH 97,1 dB
Mounting information Overall diameter N. of mounting holes and bolt Mounting holes diameter Bolt circle diameter Front mount baffle cutout ø Rear mount baffle cutout ø Total depth Flange and gasket thickness Flange and gasket thickness Net weight Shipping weight CardBoard Packaging dimensions
FREQUENCY RESPONSE CURVE OF 15LW1402 MADE ON 125 LIT. ENCLOSURE TUNED 50HZ IN FREE FIELD (4PI) ENVIRONMENT. ENCLOSURE CLOSES THE REAR OF THE DRIVER. THE THIN LINE REPRESENTS 45 DEG. OFF AXIS FREQUENCY RESPONSE
Notes 387 mm (15,23 in) 8 7,15 mm (0,28 in) 370 - 371 mm (14,55 - 14,6 in) 353 mm (13,90 in) 357 mm (14,06 in) 161,4 mm (6,35 in) 19,5 mm (0,76 in) 19,5 mm (0,76 in) 12,4 kg (27,37 lb) 13,4 kg (29,58 lb) 405 x 405 x 214 mm (15,94 x 15,94 x 8,43 in)
(1) Program power rating is measured in 125lit enclosure tuned 50Hz using a 40 - 400Hz band (2) The peak power rating is based on a 10dB crest factor above the continuous power ratingand represents the maximum permitted instantaneous peak power level over a maximum period of 10ms which will be withstood by the loudspeaker without damage. (4) Frequency range is given as the band of frequencies delineated by the lower and upper limits where the output level drops by 10 dB below the rated sensitivity in half space environment. (5) Power compression represents the loss of sensitivity for the specified power, measured from 50-500 Hz, after a 5 min pink noise preconditioning test at the specified power. (6) Thiele - Small parameters are measured after the test specimen has been conditioned by 1000 W AES power and represent the expected long term parameters after a short period of use. (7) Linear Mat. Xmax is calculated as; (Hvc-Hg)/2 + Hg/4 where Hvc is the coil depth and Hg is the gap depth
